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Mark W. Chase - One of the best experts on this subject based on the ideXlab platform.
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Phylogenetic Relationships within Zygophyllaceae Based on DNA Sequences of three Plastid Regions, with Special Emphasis on Zygophylloideae
Systematic Botany, 2000Co-Authors: Mary C. Sheahan, Mark W. ChaseAbstract:Abstract Parsimony analysis of nucleotide sequences of the plastid gene rbcL and non-coding trnL-F region was used to examine phylogenetic relationships of 36 members of Zygophyllaceae, especially of the four genera forming subfamily Zygophylloideae (Zygophyllum, Fagonia, Tetraena and Augea). The two data sets were analyzed separately, and in combination. Results of the three analyses were largely in agreement and support previous division of Zygophyllaceae into five subfamilies. Zygophylloideae were further divided into five clades each with high bootstrap support, although the branches connecting these clades are poorly supported. Zygophyllum appears polyphyletic and may need further revision. The taxonomic positions of Morkillia, Sericodes, Pintoa, and Tribulopis are also clarified. Communicating Editor: Kathleen A. Kron
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Sapindales:Molecular delimitation and infraordinal groups
American Journal of Botany, 1996Co-Authors: Paul A. Gadek, Mary C. Sheahan, Edwino S. Fernando, Christopher J. Quinn, Sara B. Hoot, Teresa Terrazas, Mark W. ChaseAbstract:An analysis of rbcL sequence data for representatives of families of putative sapindalean/rutalean affinity identified a robust clade of core "sapindalean" taxa that is sister to representatives of Malvales. The constitution of this clade approximates the broad concept of Sapindales (sensu Cronquist). Five lineages within the order are recognized: a "rutaceae" clade (Rutaceae, Cneoraceae, Ptaeroxylaceae, Simaroubaceae sensu stricto, and Meliaceae); a "sapindaceae" clade (Sapindaceae, Aceraceae, and Hippocastenaceae); Anacardiaceae plus Burseraceae; Kirkiaceae; and Zygophyllaceae pro parte. Relationships among these groups were only weakly resolved, but there was no support for the recognition of the two more narrowly defined orders, Rutales and Sapindales sensu stricto. Several families that have previously been allied to Sapindales or Rutales show no affinity to the core sapindalean taxa identified with the molecular data, and are excluded from the order: viz. Akaniaceae, Bretschneideraceae, Conneraceae, Coriariaceae, Melianthaceae, Meliosmaceae, Physenaceae, Rhabdodrendraceae, Sabiaceae, Staphyleaceae, Stylobasiaceae, Surianaceae, and Zygophyllaceae sensu stricto.
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A phylogenetic analysis of Zygophyllaceae R.Br. based on morphological, anatomical and rbcL DNA sequence data
Botanical Journal of the Linnean Society, 1996Co-Authors: Mary C. Sheahan, Mark W. ChaseAbstract:Abstract Zygophyllaceae R.Br. are a widespread family of some 25 genera from the arid tropics and subtropics. Taxonomic relationships of the family have been subject to a wide diversity of opinion and familial status has been proposed for subfamilies Peganoideae, Nitrarioideae, Tribuloideae, and Balanitoideae. The plastid gene rbc L for 20 species of Zygophyllaceae was analysed in two separate data matrices, one containing members of Zygophyllaceae sensu lato and representatives of several putatively related families, and one containing only members of the family sensu stricto . A morphological and anatomical data matrix for Zygophyllaceae s.s. was also analysed, and a combined analysis of molecular and non-molecular data was conducted. Zygophyllaceae s.s. form a monophyletic clade with no close relationships to any other group apart from the monotypic family Krameriaceae. They divide into five monophyletic lineages: one corresponding to Morkillioideae; one consisting only of Seetzenia ; and three which derive from division of Zygophylloideae. Balanites consistently appears within the tribuloid clade. Peganum, Malacocarpus and Nitraria appear widely separated from Zygophyllaceae s.s. and close to members of Sapindales. Recognition of Peganaceae and Nitrariaceae is recommended, as is a recircumscription of Zygophyllaceae s.s. to comprise five subfamilies.
Mary C. Sheahan - One of the best experts on this subject based on the ideXlab platform.
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Phylogenetic Relationships within Zygophyllaceae Based on DNA Sequences of three Plastid Regions, with Special Emphasis on Zygophylloideae
Systematic Botany, 2000Co-Authors: Mary C. Sheahan, Mark W. ChaseAbstract:Abstract Parsimony analysis of nucleotide sequences of the plastid gene rbcL and non-coding trnL-F region was used to examine phylogenetic relationships of 36 members of Zygophyllaceae, especially of the four genera forming subfamily Zygophylloideae (Zygophyllum, Fagonia, Tetraena and Augea). The two data sets were analyzed separately, and in combination. Results of the three analyses were largely in agreement and support previous division of Zygophyllaceae into five subfamilies. Zygophylloideae were further divided into five clades each with high bootstrap support, although the branches connecting these clades are poorly supported. Zygophyllum appears polyphyletic and may need further revision. The taxonomic positions of Morkillia, Sericodes, Pintoa, and Tribulopis are also clarified. Communicating Editor: Kathleen A. Kron
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Sapindales:Molecular delimitation and infraordinal groups
American Journal of Botany, 1996Co-Authors: Paul A. Gadek, Mary C. Sheahan, Edwino S. Fernando, Christopher J. Quinn, Sara B. Hoot, Teresa Terrazas, Mark W. ChaseAbstract:An analysis of rbcL sequence data for representatives of families of putative sapindalean/rutalean affinity identified a robust clade of core "sapindalean" taxa that is sister to representatives of Malvales. The constitution of this clade approximates the broad concept of Sapindales (sensu Cronquist). Five lineages within the order are recognized: a "rutaceae" clade (Rutaceae, Cneoraceae, Ptaeroxylaceae, Simaroubaceae sensu stricto, and Meliaceae); a "sapindaceae" clade (Sapindaceae, Aceraceae, and Hippocastenaceae); Anacardiaceae plus Burseraceae; Kirkiaceae; and Zygophyllaceae pro parte. Relationships among these groups were only weakly resolved, but there was no support for the recognition of the two more narrowly defined orders, Rutales and Sapindales sensu stricto. Several families that have previously been allied to Sapindales or Rutales show no affinity to the core sapindalean taxa identified with the molecular data, and are excluded from the order: viz. Akaniaceae, Bretschneideraceae, Conneraceae, Coriariaceae, Melianthaceae, Meliosmaceae, Physenaceae, Rhabdodrendraceae, Sabiaceae, Staphyleaceae, Stylobasiaceae, Surianaceae, and Zygophyllaceae sensu stricto.
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A phylogenetic analysis of Zygophyllaceae R.Br. based on morphological, anatomical and rbcL DNA sequence data
Botanical Journal of the Linnean Society, 1996Co-Authors: Mary C. Sheahan, Mark W. ChaseAbstract:Abstract Zygophyllaceae R.Br. are a widespread family of some 25 genera from the arid tropics and subtropics. Taxonomic relationships of the family have been subject to a wide diversity of opinion and familial status has been proposed for subfamilies Peganoideae, Nitrarioideae, Tribuloideae, and Balanitoideae. The plastid gene rbc L for 20 species of Zygophyllaceae was analysed in two separate data matrices, one containing members of Zygophyllaceae sensu lato and representatives of several putatively related families, and one containing only members of the family sensu stricto . A morphological and anatomical data matrix for Zygophyllaceae s.s. was also analysed, and a combined analysis of molecular and non-molecular data was conducted. Zygophyllaceae s.s. form a monophyletic clade with no close relationships to any other group apart from the monotypic family Krameriaceae. They divide into five monophyletic lineages: one corresponding to Morkillioideae; one consisting only of Seetzenia ; and three which derive from division of Zygophylloideae. Balanites consistently appears within the tribuloid clade. Peganum, Malacocarpus and Nitraria appear widely separated from Zygophyllaceae s.s. and close to members of Sapindales. Recognition of Peganaceae and Nitrariaceae is recommended, as is a recircumscription of Zygophyllaceae s.s. to comprise five subfamilies.
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Contribution of vegetative anatomy to the systematics of the Zygophyllaceae R.Br.
Botanical Journal of the Linnean Society, 1993Co-Authors: Mary C. Sheahan, David F. CutlerAbstract:Abstract Sheahan, M. C. & Cutler, D. F., 1993. Contribution of vegetative anatomy to the systematics of the Zygophyllaceae R.Br. The Zygophyllaceae sensu lato are a heterogeneous family of trees, shrubs and herbs growing in arid and semi-arid areas of the world. There has been disagreement about the systematic status of some groups within the family, and the position of Balanites has also been disputed. The vegetative anatomy of the family was examined to see if it could throw light on current systems of classification. The anatomy of 37 species in 19 genera is described, and the results of tests of C 4 activity in 27 species are given. There is anatomical evidence to support the exclusion of Balanites into a separate family, and some groups (Engler's Peganoideae and Nitrarioideae) have characteristics which set them apart from the rest of the family. This is in accordance with other analyses of the family based on morphological, palynological and biochemical studies. There is also evidence that the tribuloid genera Tribulus, Kallstroemia and Kelleronia should be separated from the zygophylloid genera, at least at subfamily level; however, Neoluederitzia and Sisyndite should remain in the Zygophylloideae. Brief reference is made to relationships with other families in the Geraniales.
J Herms - One of the best experts on this subject based on the ideXlab platform.
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effets de l alimentation en peganum harmala l Zygophyllaceae sur le tube digestif du criquet pelerin schistocerca gregaria forsk orthoptera acrididae
Zoologica baetica, 2008Co-Authors: L Idrissi M Hassani, J HermsAbstract:EnglishToxic effects of Peganum harmala (Zygophyllaceae) on the digestive track of the desert locust Schistocerca gregaria were tested. The histological study was performed in the medium intestine. This later presents a reduction of the external circular muscle resulting in a relaxation of the intestine and atrophy of the intestinal mucosa which showed a reduction of striated epithelium. However the mesenteric epithelium showed a grainy appearance, an altered edge of the microvillosities and some typical signs of cell necrosis. francaisLes effets toxiques de Peganum harmala (Zygophyllaceae) sur le tube digestif du criquet pelerin Schistocerca gregaria ont ete testes. L’etude histologique pratiquee au niveau de l’intestin moyen montre que ce dernier presente une reduction de la musculature circulaire externe entrainant un relâchement de l’intestin et une atrophie de la muqueuse intestinale qui presente un epithelium strie reduit. L’epithelium mesenteral presente un aspect granuleux, une bordure en brosse alteree et des signes typiques de necrose cellulaire.
Tzen Yuh Chiang - One of the best experts on this subject based on the ideXlab platform.
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conservation genetics and phylogeography of endangered and endemic shrub tetraena mongolica Zygophyllaceae in inner mongolia china
BMC Genetics, 2011Co-Authors: Xuejun Ge, Chichuan Hwang, Chi Chun Huang, Wei Hsiang Huang, Kuo Hsiang Hung, Wei Kuang Wang, Tzen Yuh ChiangAbstract:Background Tetraena mongolica (Zygophyllaceae), an endangered endemic species in western Inner Mongolia, China. For endemic species with a limited geographical range and declining populations, historical patterns of demography and hierarchical genetic structure are important for determining population structure, and also provide information for developing effective and sustainable management plans. In this study, we assess genetic variation, population structure, and phylogeography of T. mongolica from eight populations. Furthermore, we evaluate the conservation and management units to provide the information for conservation.
David F. Cutler - One of the best experts on this subject based on the ideXlab platform.
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Contribution of vegetative anatomy to the systematics of the Zygophyllaceae R.Br.
Botanical Journal of the Linnean Society, 1993Co-Authors: Mary C. Sheahan, David F. CutlerAbstract:Abstract Sheahan, M. C. & Cutler, D. F., 1993. Contribution of vegetative anatomy to the systematics of the Zygophyllaceae R.Br. The Zygophyllaceae sensu lato are a heterogeneous family of trees, shrubs and herbs growing in arid and semi-arid areas of the world. There has been disagreement about the systematic status of some groups within the family, and the position of Balanites has also been disputed. The vegetative anatomy of the family was examined to see if it could throw light on current systems of classification. The anatomy of 37 species in 19 genera is described, and the results of tests of C 4 activity in 27 species are given. There is anatomical evidence to support the exclusion of Balanites into a separate family, and some groups (Engler's Peganoideae and Nitrarioideae) have characteristics which set them apart from the rest of the family. This is in accordance with other analyses of the family based on morphological, palynological and biochemical studies. There is also evidence that the tribuloid genera Tribulus, Kallstroemia and Kelleronia should be separated from the zygophylloid genera, at least at subfamily level; however, Neoluederitzia and Sisyndite should remain in the Zygophylloideae. Brief reference is made to relationships with other families in the Geraniales.